Elenco EDU61003 Owner's manual

Brand: Elenco

Model: EDU61003

Type: Owner's manual

Elenco EDU61003 is a snap-together kit that allows you to build a working model of Leonardo da Vinci’s Swing Bridge. The kit includes all of the necessary parts to build the bridge, as well as detailed instructions. Once assembled, the bridge can be operated by hand to swing it open and closed. The EDU61003 is a great way to learn about the principles of engineering and physics, and it is also a fun and challenging project to build.

Swing Bridge

Instruction manual

Genius is Timeless

AGES 8+

Contents

• About Leonardo Da Vinci

• Da Vinci’s Notebooks

• The Bridges of Leonardo da Vinci

• Revolving Bridge

• Components

• How To Assemble

• How to Operate the Swing Bridge

• Da Vinci Series Kit

P. 1

P. 4

P. 6

P. 7

P. 8

P. 9

P. 11

P.12

“Iron rusts from disuse; stagnant water

loses its purity and in cold weather becomes frozen;

even so does inaction sap the vigor of the mind.”

(April 15, 1452 - May 2, 1519)

Leonardo

Leonardo da Vinci

was born April 15, 1452 in Vinci, Italy. Da Vinci was

an artist, scientist, mathematician, engineer, inventor, anatomist, sculptor,

architect, botanist, musician and writer. He has often been described as a perfect

example of a Renaissance man, a man whose unquenchable curiosity was equaled

only by his powers of invention and observation. Da Vinci is widely considered

to be one of the greatest painters of all time and perhaps the most diversely

talented person to have ever lived.

At an early age, Da Vinci’s talent for drawing became evident, and his father

apprenticed his young son to a noted period artist, Andrea del Verrocchio.

Through the coming years, the young Leonardo learned much from his mentor and

at the age of thirty, Da Vinci left Florence and settled in Milan and established

a workshop of his own. During the following years, he earned his living painting

commissioned pieces. He soon came to the conclusion that it was not possible for

him to earn steady income doing this and began his search for employment.

He began by writing a letter to the Duchy of Milan, Duke Ludovico Sforza,

known by the nickname, the Moor. In this correspondence, Da Vinci stated that

he had studied machines of war and had come up with improvements that would

strengthen the Moor’s position in battles. The letter hinted at inventions that

included portable lightweight bridges and improved designs for bombards, mortars,

catapults, covered assault vehicles and weapons. The Moor eventually became

Da Vinci’s patron and kept him busy with everything from designing a heating

system to painting portraits, to overseeing production of cannons and even

decorating the vaulted ceilings in his castle.

It was during this time that Da Vinci began writing and drawing in his journals.

These volumes became repositories of the outflow of Leonardo’s gifted mind.

He was a voracious student of the universe and his observations led to magnificent

plans and concepts. Da Vinci’s notebooks consist of more than 20,000 sketches,

copious notes and detailed drawings. Some of his conceptual designs led to the

greatest inventions of his day, while others came to fruition hundreds of years after

his initial concepts were penned, simply because the machinery needed to build

and power them were not yet invented. Leonardo’s notebooks clearly illustrate his

genius of not only improving upon existing inventions, but also

conceiving a myriad of new ideas and designs.

Ultimately, the Moor was captured by the French and

Da Vinci left Milan in search of a new patron. He traveled

through Italy for more than a decade, working for several

Dukes and rulers, including Cesare Borgia, a General

intent on conquering central Italy. Leonardo traveled with

Borgia as a military engineer, designing weapons, fortresses

and artillery, but became disillusioned and quickly left his

service with the General. It seems that despite Da Vinci’s

design for artillery and weaponry, he was actually a

pacifist and detested war and its destruction.

The Mona Lisa (circa 1503) The Last Supper (circa 1498)

Virtruvian Man (circa 1487)

Da Vinci later took positions with King Louis XII and Pope Leo X and ultimately

with the King of France, Francis I. It was the King who offered Da Vinci the title,

Premier Painter and Engineer and Architect of the King. Francis I valued

Da Vinci’s great mind and his sole function was to engage in conversations about

Renaissance culture and art with the benevolent royal.

ARTISTIC MASTERPIECES OF LEONARDO DA VINCI

It is important to remember that Da Vinci is not only

and great inventor, but is considered to be one of the

most acclaimed artists to ever have lived, creating

such masterpieces as The Last Supper (c.1498) and the

Mona Lisa (c.1503). Leonardo's drawing of the

Vitruvian Man is also regarded as a masterpiece.

Unfortunately, only a small number of Da Vinci’s

paintings have survived. Leonardo experimented with

new techniques, most of which did not yield

long-lasting results. The master painter was also somewhat of a perfectionist

with fastidious attention to detail. It is believed that when painting the Mona

Lisa, the artist spent ten years perfecting the lips of this masterpiece.

Da Vinci’s notebooks are now more than 500 years old.

They are not bound the way a typical book would be

today, but rather comprised of loose sheets of paper

gathered into collections and wrapped with fabric.

Paper was scarce in Da Vinci’s time, so he used

every available space in a page for drawings,

observations, even recipes and shopping lists, making

them somewhat difficult to interpret. Adding to the

difficulty in deciphering his works was the fact that

Da Vinci’s scripted notes were written backwards, or in

a mirror image, and read from right to left. His reason for

this remains a mystery, but it is thought that Leonardo’s

theories sometimes went against church teachings and his secret writing could

have been a way to avoid scrutiny. Da Vinci also might have feared that someone

would steal his designs and publish them under

their own name. Ironically, Da Vinci addressed

an imaginary readership in the margins of his

notebooks urging the reader to make sure his work

was printed into a proper book. It is presumed that

he meant for the notebooks

to be published after

his death.

Da Vinci’s Notebooks

Several common themes recur in the now fragile

notebooks: Nature, Technology (including gears,

cogwheels, screws and pulleys), aviation and vision,

to name a few. Upon the death of Leonardo Da

Vinci, the notebooks were given to his long-time

friend, Count Francesco Melzi. Melzi did not fully comprehend the value of the

information and published only a portion of the volumes. He placed the notebooks

in his home where they were viewed by guests who sometimes took pages with

them as souvenirs.After Melzi’s death, an additional 13 Da Vinci notebooks

disappeared and soon pages were scattered across Europe. Da Vinci’s notebook

In his drawings, Leonardo strived for

saper vedere or “knowing how to see.”

Da Vinci’s illustrations are unparalleled

and some experts believe that no one has

since been better.

extracts were published in 1883 and about half of

them have not yet resurfaced so far. It is easy to

imagine that had the notebooks been published

earlier, the history of science might have been

completely changed.

The Bridges of Leonardo da Vinci

I have plans for bridges, very light and strong and suitable for carrying very easily,

with which to pursue and at times defeat the enemy; and others solid and

indestructible by fire or assault, easy and convenient to carry and place in position.

And plans for burning and destroying those of the enemy.

Bridges have always been important to

societies as a means of crossing waterways

and offering safe reliable transportation to

benefit trade. The bridges designed by

Leonardo Da Vinci were designed to be

constructed easily, using readily available

local materials. This allowed armies to

construct them on-site and allow military

units to surprise enemies by quickly crossing a river or moat unexpectedly.

Da Vinci had a lot of ideas for designs that prompted him to write to the Duke

of Milan:

Temporary Rotating Bridge (c. 1485-1490)

Da Vinci designed a revolving bridge for Duke Sforza, of Milan. The bridge would

swing across a stream or moat and set down on the other side so that soldiers

could pass with little trouble. Da Vinci designed this revolving bridge using light

materials, affixed to a rolling rope-and-pulley system that would allow an army

to pick up and go at a moment's notice.

Da Vinci’s also designed bridges to guard against advancing enemies. One of his

bridge designs lets the span swing around a piling separating it form the shore to

prevent opposing military units from crossing the river.

Leonardo drew plans for a single-span bridge, but never saw it built in his lifetime.

At the time, no one believed his bridge could work especially without the usual

support piers to hold up the center. In 1781, Thomas Pin exhibited a model in

Benjamin Franklin’s garden. He too, did not convince his observers that the bridge

would work.

Da Vinci also illustrated that triangular truss bridges would resist tension better

than the older box structures and proposed a two-level truss bridge with the bottom

for vehicles and transportation and the top for pedestrians.

Da Vinci’s plans for the Gold Horn Bridge, designed for Sultan Bajazet II of

Constantinople (Istanbul) were resurrected by a Norwegian artist five centuries

after they were drawn. The artist undertook the project to build the bridge,

as homage to Da Vinci. The span is situated in Norway and opened to foot and

bicycle traffic on October 31, 2001. The artist, Vebjørn Sand, is currently

considering several sites in the United States for the next Leonardo Bridge Project.

DID YOU KNOW?

Revolving Bridge

x 2

Components

How to Assemble

How to Operate the Swing Bridge

Aerial Screw

The Aerial Screw design is a precursor

of the modern day helicopter.

The drawing of Da Vinci’s concept

illustrated the compression of air that

was intended to lift the device off the ground.

Edu-Science Da Vinci Series Kits

Mechanical Drum

Leonardo da Vinci’s mechanical drum was

designed as a cart equipped with an amply

sized drum. When pulled by its handle,

the gears turn the two lateral drums,

which are fitted with pegs. The pegs move

a total of ten drumsticks that cause

them to beat the large drum.

The scientific genius of Leonardo Da Vinci is brought to life through

articulated models offered by Edu-Science. The inventions that inspired

these snap-together replicas are taken from the pages of Da Vinci’s

priceless and awe-inspiring notebooks.

DV001

DV002

Swing Bridge

The Swing Bridge was a portable,

lightweight bridge intended to span a body

of water for armies to cross, and then quickly

disassemble in order to tow away. Equipped with

a rope and wheels, the lightweight bridge

was designed for easy transport.

Printing Press

Leonardo da Vinci studied the Guttenberg

printing press and finely-tuned it for greater

efficiency. In his design, he used a hand press

with an automatic system that moved

the type-saddle forward and back along

a tilted surface, making printing faster and easier.

Multi-barreled Canon

The 12-barreled gun carriage was developed to give

the traditional canon additional firepower and was

a potentially effective weapon against a line

of advancing troops.

Armored Car

A precursor to the modern-day tank,

the armored car was capable of multi-directional

movement and was equipped with

cannons arranged in a 360-degree

firing range around its circumference.

DV003

DV005

DV006

DV007

Paddleboat

In Da Vinci’s time, nautical expedition was

the most expedient method of communicating

with the world and his design for a boat

with large wheel-shaped paddles that

would propel it through water offered a faster

and easier method of water transportation.

Self-Propelled Cart

Da Vinci’s self-propelled cart was the first

to be capable of moving without being

pushed or pulled manually. This precursor to

the automobile was one of the many inventions

that Leonardo created dealing with locomotion and

transportation.

Catapult

Improvements were made to the age-old military

launching device called a catapult.

The new design employed a hand-crank that

caused tension on the throw arm.

The spring design produced a large amount

of energy in order to propel stone projectiles or

incendiary materials over great distances.

Bombard

This improved cannon was designed to

include projectiles that contained a quantity

of mini gunpowder shots packed into petal-shaped

iron pieces that formed a ball.

The device exploded into fragments that had greater

range and impact than a single cannonball.

DV008

DV009

DV010

DV011

Notes

The Aerial Screw

Instruction manual

Genius is Timeless

11 12

321

161514

6 8 9

Swing Bridge

Instruction manual

Genius is Timeless

P38-DV003-81001000

Printed in China

Interpretation of the original Leonardo da Vinci’s design/

Elenco EDU61003 Owner's manual

Elenco EDU61003 Owner's manual

Elenco EDU61003 Owner's manual

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